package cn.dust.design.principle.dependenceinversion;

/**
 * @Author: dust
 * @Date: 2019/11/24 19:07
 */
public class Test {
    public static void main(String[] args) {
        QWER q=new Qjineng();
        QWER w=new Wjineng();
        QWER r=new Rjineng();
        Dust dust=new Dust();
        dust.study(q);
        dust.study(w);
        dust.study(r);
    }
}
